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iohandler: Use aio API

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iohandler.c shares the same interface with aio, but with duplicated
code. It's better to rebase iohandler, also because that aio is a
more friendly interface to multi-threads.

Create a global AioContext instance and let its GSource handle the
iohandler events.

Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <1441596538-4412-1-git-send-email-famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Fam Zheng 2015-09-07 11:28:58 +08:00 • committed by Paolo Bonzini
parent 46036b2462
commit f3926945c8
3 changed files with 21 additions and 102 deletions
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3
include/qemu/main-loop.h
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@ -203,6 +203,7 @@ void qemu_set_fd_handler(int fd,
IOHandler *fd_write,
void *opaque);
GSource *iohandler_get_g_source(void);
#ifdef CONFIG_POSIX
/**
* qemu_add_child_watch: Register a child process for reaping.
@ -265,8 +266,6 @@ void qemu_mutex_unlock_iothread(void);
/* internal interfaces */
void qemu_fd_register(int fd);
void qemu_iohandler_fill(GArray *pollfds);
void qemu_iohandler_poll(GArray *pollfds, int rc);
QEMUBH *qemu_bh_new(QEMUBHFunc *cb, void *opaque);
void qemu_bh_schedule_idle(QEMUBH *bh);